You can very easily add a multiple language option to any website by embedding the Google Translate tool. I don't speak any foreign languages to verify the accuracy of the translations, but at least adding the tool was very easy. I set up a "Translate" option on the right side as a test. Too bad that I have no idea if it is actually working well!
The main Google Translate page also lets you enter any website or upload a document for translation. Again, I have no idea how accurate it is but it might be good for foreign language teachers to experiment with it.
Header photo by Robert S. Donovan